How to access query params in a policy

You should be able to add an expr policy that checks the record’s value to update.

policies do
  policy action(:update_action) do
    authorize_if expr(attribute_on_record_to_update == true)
    authorize_if expr(attribute_on_record_to_update == ^actor(:id))
  end
end

if you create a simple_check
the context should have the changeset and changeset.data holds the record to update.

Thanks for your reply. Yes, I want to write a simple check, but the changeset.data didn’t have the record, instead, it had Ash.Changeset.OriginalDataNotAvailable{reason: :atomic_query_update}

can you try adding require_atomic? false to your action definition.

Could you open an issue as well, please? I think this might be a bug. If your validation module has no atomic? callback, we should detect that and run the action in non-atomic mode, or at least show some warning/error.

Don’t know why I was looking at validations must have been tired